Skin treatment apparatus



FIG. 1 is a front view of a skin treatment apparatus showing my new design;

FIG. 2 is a rear view of the skin treatment apparatus;

FIG. 3 is a left side view of the skin treatment apparatus;

FIG. 4 is a right side view of the skin treatment apparatus;

FIG. 5 is a top view of the skin treatment apparatus;

FIG. 6 is a bottom view of the skin treatment apparatus;

FIG. 7 is a first perspective view of the skin treatment apparatus; and,

FIG. 8 is a second perspective view of the skin treatment apparatus. 

CLAIM The ornamental design for a skin treatment apparatus, substantially as shown and described. 